20 Nebraska Game and Parks Commission • Floating The Good Life
MISSOURI
RIVER/CHANNELIZED
RIVER
Channelized Rivers
This river type is generally representative of a human-modified, straightened channel for the
purpose of directing flows and controlling flooding. The goal is to move floodwaters more quickly
downstream and to prevent rivers from spilling over their banks onto their floodplains during
high-water events. Channelization of rivers results in higher energy flows and sediment transport,
and detrimental impacts to aquatic and terrestrial wildlife habitats. This river type is seen most
commonly in agricultural areas where water is directed for irrigation purposes, such as the Loup
Power Canal. Other channelized rivers and streams in Nebraska include the Missouri River south
of Sioux City (pictured on right), portions of Salt Creek and Big Papio Creek.
Figure 5: Channelized Rivers
Straightened or channelized rivers that have been intentionally constructed or modified for flood
control or irrigation purposes are not hte same as naturally formed rivers. Due to the potential
for structures and/or extreme variations in water levels, channelized rivers are generally not
considered safe for paddling. Consultation with Nebraska Game and Parks staff is encouraged
when considering the suitability of a channelized river for use as a water trail.
CONSTRUCTED STEEP SLOPES
and levies along intentionally
channelized streams
Levy Levy Embankment Embankment Channel
